Step-by-step motor rotor magnetic field structure and its manufacture method
A rotor magnetic field and stepping motor technology, applied in the direction of magnetic circuit shape/style/structure, manufacturing stator/rotor body, magnetic circuit rotating parts, etc., can solve vibration and noise, excessive inching torque, magnetic pole teeth Problems such as inability to connect continuously, achieve the effect of reducing vibration and noise
Inactive Publication Date: 2003-06-11
苏州元本电子有限公司
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[0003] However, the magnetic field lines 81 of the magnetic field structure of the rotor 8 are parallel to the axial direction of the rotor 8, so there will be a distance 82 between the magnetic field lines 81 and the magnetic field lines 81, and such a magnetic field structure of the rotor 8 will make the magnetic field lines of the rotor 8 81 and the magnetic pole teeth of the stator cannot be continuously coupled and connected, so that when the rotor 8 operates according to the magnetization of the magnetic pole teeth, an incoherent operation will occur, resulting in excessive inching torque (Detent Torque) when the stepping motor is running. , causing vibration and noise
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[0043] Example: such as image 3 Shown, be the selected embodiment steps of the present invention.
[0044] The present invention relates to a rotor magnetic field structure of a stepping motor and a manufacturing method thereof. The magnetic field structure of the rotor is tied to a plurality of magnetic field lines 11 magnetized on the rotor 1, and each of the magnetic field lines 11 forms a certain inclination with the axial direction of the rotor 1. Angle θs, and the upper and lower ends of the magnetic field line 11 and the adjacent magnetic field line 11 can be connected but not overlapped, and the acquisition of the inclination angle θs is shown in the formula 0 degree<θs≤θ×50%, and the The acquisition of angle θ, such as formula θ=360 degree / N, N is the quantity of magnetic field line, in the present embodiment, the quantity of this magnetic field line 11 is eighteen, so this angle θs is 20 degree, so this inclination angle θs is between 0 degrees and 10 degrees, and ...
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This invention discloses a step motor rotor magnetic field structure and process method which is to separately process most of silicon steel plates providing notches for lead through, then to pile a magnet-charging head with a die to form a magnet charging base and multiple slot channels to rotate the head to get a tilted angle theta s then to put the head into a cooling system further to put the rotor into the magnet charging base of the head to be charged, making the rotor have a magnet structure with the said tilted angle theta s after charged.
Description
technical field [0001] The present invention relates to a stepping motor rotor magnetic field structure and its manufacturing method, especially a magnetic field structure that can make the stepping motor rotor have a certain inclination angle, so as to slow down the inching torque generated when the stepping motor is running, and further A manufacturing method that can reduce vibration and noise. Background technique [0002] Such as figure 1 , figure 2 Shown is the rotor of the existing stepping motor. The rotor 8 is permanently magnetized to make the rotor 8 produce a magnetic field structure with a large number of magnetic field lines 81, and can be coupled with a stator pole tooth magnetized by an electric excitation method. The rotor 8 can be operated according to the magnetization of the magnetic pole teeth. [0003] However, the magnetic field lines 81 of the magnetic field structure of the rotor 8 are parallel to the axial direction of the rotor 8, so there will...
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Login to View More IPC IPC(8): H02K1/27H02K15/03H02K37/12
Inventor 张文彦曹平山
Owner 苏州元本电子有限公司